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Pass NBRC RPFT Exam With Practice Test Questions Dumps Bundle
NEW QUESTION 40
The following results are obtained from an adult patient:
Which of the following is the best interpretation of these values?
- A. Airways obstruction
- B. Small airway disease
- C. Normal values
- D. Combined obstruction/restriction
Answer: B
NEW QUESTION 41
When using a variable pressure plethysmograph, a leak in the door seal that develops subsequent to calibration will cause underestimation of
- A. Raw
- B. Alveolar pressure
- C. vital capacity
- D. VTG
Answer: B
NEW QUESTION 42 
The ECG above is recorded during the recovery phase immediately following termination of an ergo meter exercise study. A pulmonary function technologist should
- A. Continue the cool-down phase
- B. Initiate chest compressions
- C. Have the patient lie down
- D. Check the electrode connections
Answer: B
NEW QUESTION 43
A pulmonary function technologist is performing quality control on a nebulizer used in the 5-breath dosimeter bronchial challenge. The target output of the device is 0.09 mL, plus or minus 10%. After 10 actuations, the nebulizer output was 75 µL with a 2.0 mL initial saline dose in the nebulizer. The technologist should
- A. Accept the results and begin using the device.
- B. Clean and reevaluate this nebulizer.
- C. Open the vent before starting the bronchial challenge.
- D. Add an exhalation filter and proceed with testing patients.
Answer: A
NEW QUESTION 44
Which of the following problems may be identified by using an isothermal lung analog to perform quality control on a body plethysmograph?
1. Improperly calibrated mouth pressure transducer
2. Obstructed or perforated pneumotachometer
3. Increase in mechanical resistance
4. Malfunctioning box pressure transducer
- A. 1 and 4 only
- B. 2 and 3 only
- C. 1 and 2 only
- D. 3 and 4 only
Answer: A
NEW QUESTION 45
When performing quality control in a body plethysmograph using a 5-L isothermal bottle, theVTGat shutter closure are as follows:
A pulmonary function technologist should
- A. Check biological control before beginning testing.
- B. Proceed with patient testing.
- C. Service the mouth pressure transducer.
- D. Recalibrate the box pressure transducer.
Answer: C
NEW QUESTION 46
Prior to an exercise study, a pulmonary function technologist finds that the patient's RER is
1.13. Which of the following bestexplains this finding?
- A. Protein metabolism
- B. Carbohydrate metabolism
- C. Hypoventilation
- D. Hyperventilation
Answer: D
NEW QUESTION 47
A treadmill belt stops for a fraction of a second each time the patient takes a step. A pulmonary function technologist should
- A. Tighten the belt.
- B. Instruct the patient to use the hand rails.
- C. Increase the speed of the belt.
- D. Decrease the treadmill grade.
Answer: A
NEW QUESTION 48
Which of the following sets of FIF data is most consistent with an extrathoracic airway obstruction?
- A. Option D
- B. Option B
- C. Option A
- D. Option C
Answer: A
NEW QUESTION 49
After finishing the exercise portion of a test for exercise-induced bronchospasm, a patient
complains of difficulty "catching her breath." A pulmonary function technologist should
- A. Administer oxygen at 2 L/min.
- B. Instruct the patient to breathe normally.
- C. Give the patient a bronchodilator.
- D. Have the patient perform an FVC maneuver.
Answer: C
NEW QUESTION 50
An arterial blood gas performed prior to exercise on a 45-year-old patient shows the following results:
A pulmonary function technologist should conclude that the patient's
- A. Values are within normal limits.
- B. Dead space ventilation is above normal.
- C. Alveolar ventilation is above normal.
- D. Hemoglobin level is below normal.
Answer: D
NEW QUESTION 51
A subject has the following values reported:
WhatistheSGAW?
- A. 0.40
- B. 0.20
- C. 0.80
- D. 1.25
Answer: D
NEW QUESTION 52
A polarographic oxygen analyzer used to measure expired gas in a metabolic system should always be calibrated with
- A. Oxygen mixtures containing 4% and 8% carbon dioxide
- B. Air and fully saturated 100% oxygen.
- C. Gas concentrations higher and lower than the expected measurement
- D. 100% oxygen and 100% nitrogen, fully saturated
Answer: C
NEW QUESTION 53
While setting up an exercise laboratory in a city with an altitude of 8,600 ft (2,775 m), a pulmonary function technologist notices the fuel cellO2analyzer is displaying 15.2%. Which of the following is the best explanation for this finding?
- A. F1O2decreases with increasing altitude.
- B. The analyzer is responding to P1O2.
- C. The fuel cell needs to be changed.
- D. This exercise system will not work at high altitude.
Answer: B
NEW QUESTION 54
A subject has the following values reported:
What is the SGAW?
- A. 0.40
- B. 0.20
- C. 0.80
- D. 1.25
Answer: D
NEW QUESTION 55
A body plethysmograph box pressure transducer fails the electronic calibration check after multiple attempts.
Which of the following should a pulmonary function technologist do?
1. Perform a biologic control test
2. Inspect the door seal.
3. Re-zero the box pressure transducer.
4. Perform a physical pressure calibration.
- A. 1, 2, and 4 only
- B. 2, 3, and 4 only
- C. 1, 3, and 4 only
- D. 1, 2, and 3 only
Answer: D
NEW QUESTION 56
A 45-year-old female with sarcoidosis has pulmonary function tests annually. The following data have been recorded:
A pulmonary function technologist should conclude that
- A. The patient's restrictive component has worsened.
- B. Incorrect predicted values have been used.
- C. The patient has developed mild obstructive airway disease.
- D. The patient has a normal rate of loss for FEV1.
Answer: B
NEW QUESTION 57
Successive peak flow measurements made with a peak flowmeter on a subject previously diagnosed as having asthma yield the following results:
Which of the following is the best explanation for these?
- A. Increasing airways resistance in the subject
- B. Normal response
- C. Condensation of moisture in the peak flowmeter
- D. Improper calibration of the peak flowmeter
Answer: A
NEW QUESTION 58
CORRECT TEXT
A pulmonary function technologist is reviewing results of a recent mechanical diffusion simulation using a 3-liter syringe. The test was conducted at a room temperature of 22 C.
The following BTPS results were reported:
Which of the following should the technologist do?
- A. Recalibrate the pneumotachometer.
- B. Recalibrate the gas analyzer.
- C. Change the calibration gases.
- D. Proceed with testing.
Answer: D
NEW QUESTION 59
While performing duplicate blood gas analyses, a pulmonary function technologist notes that the second instrument gives consistently higher values forPaCO2and PaO2. Which of
the following is the most probable cause of higher readings from the second instrument?
- A. An excessive delay occurredbetween running the two samples
- B. The sample chamber has a bacterial contaminate
- C. The sample chamber temperature is greater than 37 C
- D. The PO2and PCO2electrodemembranes have protein build-up
Answer: C
NEW QUESTION 60
A helium dilution test has just been performed on a patient. The following results are obtained:
FRC 5.0 L
VC 4.0 L
ERV 1.5 L
TLC was calculated to be 6.0 L by plethysmography. From this information, a pulmonary function technologist should conclude that the patient
- A. Did not remain in the helium dilution breathing circuit long enough for equilibration.
- B. Did not perform the slow vital capacity properly, resulting in too low an FRC by helium dilution.
- C. Was turned into the helium dilution circuit at a lung volume considerably above FRC.
- D. Had inadequate intrapulmonary mixing of inspired gas, resulting in an erroneous FRC.
Answer: D
Explanation:
Explanation/Reference:
NEW QUESTION 61
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